Once the Great Northern Wilderness, today's North Dazang, there is a vast plain, fertile black land, sweet underground springs, everything here nourishes the Merisian onion with the name "little ginseng". Merris onions are divided into purple onions and yellow onions. The onion bulb is round and spherical, with high firmness, spicy taste, slightly sweet, high crude fiber content, rich nutrition and storage resistance.